Macgregor is a distinctive boys' name in United States, ranking #13297 in 2014 with 5 recorded births. The name reached its all-time peak in 2000 with 17 births ranking #4500. Since 1996, the popularity has decreased by 58.3%. In 2014, approximately 1 in every 384,088 boys born was named Macgregor. RISING Recent data shows the name is currently rising.